<p><b>@krono</b> commented on this pull request.</p>

<hr>

<p>In <a href="https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/306#discussion_r247033868">platforms/iOS/vm/OSX/sqSqueakOSXMetalView.m</a>:</p>
<pre style='color:#555'>> +    // Alawys try to fill the texture with the pixels.
+       if ( fullScreendispBitsIndex ) {
+               [self loadTexturesFrom: fullScreendispBitsIndex subRectangle: (clippyIsEmpty ? rect : NSRectFromCGRect(clippy))];
+               //[self loadTexturesFrom: fullScreendispBitsIndex subRectangle: rect];
+               clippyIsEmpty = YES;
+           syncNeeded = NO;
+       }
+       
+       MTLRenderPassDescriptor *renderPassDescriptor = self.currentRenderPassDescriptor;
+       if(renderPassDescriptor != nil && self.currentDrawable)
+       {
+               currentCommandBuffer = [graphicsCommandQueue commandBuffer];
+               currentRenderEncoder = [currentCommandBuffer renderCommandEncoderWithDescriptor: renderPassDescriptor];
+               
+               // Set the viewport.
+               [currentRenderEncoder setViewport: (MTLViewport){0.0, 0.0, lastFrameSize.size.width, lastFrameSize.size.height}];
</pre>
<p>Welcome to the cool world of backing scale factor.</p>
<p>see</p>
<ul>
<li><a href="https://github.com/OpenSmalltalk/opensmalltalk-vm/compare/krono/highdpi-v2#diff-ab2387a7532e8a34fd44520e207a5e69">https://github.com/OpenSmalltalk/opensmalltalk-vm/compare/krono/highdpi-v2#diff-ab2387a7532e8a34fd44520e207a5e69</a></li>
<li><a href="https://github.com/OpenSmalltalk/opensmalltalk-vm/compare/krono/highdpi-v2#diff-7c007173fcbc79b3e9984468210d3d11">https://github.com/OpenSmalltalk/opensmalltalk-vm/compare/krono/highdpi-v2#diff-7c007173fcbc79b3e9984468210d3d11</a></li>
</ul>
<p>and the like</p>

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